toolpath-dot

Generate Graphviz DOT visualizations from Toolpath documents.

Provenance data is only useful if you can see it. This crate renders the step DAG as a Graphviz diagram so you can see at a glance who did what, where the dead ends branched off, and how human/agent/tool contributions interleave — color-coded by actor type.

Overview

Renders any Toolpath Document (Step, Path, or Graph) as a Graphviz DOT string. Steps are colored by actor type, dead ends are highlighted, and the DAG structure is preserved visually.

Depends only on toolpath -- no external rendering libraries.

Usage

use toolpath::v1::Document;
use toolpath_dot::{render, RenderOptions};

let json_str = r#"{"Step":{"step":{"id":"s1","actor":"human:alex","timestamp":"T"},"change":{}}}"#;
let doc = Document::from_json(json_str).unwrap();
let dot = render(&doc, &RenderOptions::default());
assert!(dot.contains("digraph"));

Pipe through Graphviz to produce images:

path derive git --repo . --branch main | path render dot | dot -Tpng -o graph.png

Render options

use toolpath_dot::RenderOptions;

let options = RenderOptions {
    show_files: true,           // list changed files in step labels
    show_timestamps: true,      // show timestamps in step labels
    highlight_dead_ends: true,  // dashed red border on dead-end steps (default)
};

API

Visual conventions

Part of Toolpath

This crate is part of the Toolpath workspace. See also:

• toolpath -- core types and query API
• toolpath-git -- derive from git history
• toolpath-claude -- derive from Claude conversations
• toolpath-cli -- unified CLI (cargo install toolpath-cli)
• RFC -- full format specification